DTU uses PVD coatings to initially alter radar reflection signals
What happened
The Technical University of Denmark (DTU), in collaboration with Aarhus University, the Danish Technological Institute, and companies including TICRA and Arctic Unmanned, used physical vapor deposition (PVD) to prepare ultrathin coatings to enhance or attenuate the radar reflection signals of drones. Preliminary tests show that the PVD coating material can significantly attenuate reflected signals, but this result has so far only been achieved on simple shapes such as rectangular plates and cylinders, and has not yet been verified on drones. The next step for the project is to adapt the method to drones with more complex geometries and to test the radar detection effect of coated drones in real environments. The team says the coating also needs to meet conditions such as being robust, not increasing the drone's overall weight, and being suitable for future industrial production. Another route of the project is to develop artificial metasurfaces that can regulate electromagnetic waves, which are said to potentially cost less to manufacture than PVD processing.
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- Tech Xplore RoboticsDTU joint project uses PVD coatings and metasurfaces to alter drone radar signatures
DTU is collaborating with Aarhus University, the Danish Technological Institute, and companies including TICRA and Arctic Unmanned to use physical vapor deposition (PVD) to produce ultrathin coatings that enhance or reduce drone radar reflection signals. Initial tests on simple shapes such as rectangular plates and cylinders achieved significant attenuation of reflected signals. The next step will be to adapt the method to drones with more complex geometries and test its radar detection effects in real environments. Another route in the project is to develop tunable artificial metasurfaces, which are said to potentially cost less to manufacture than PVD processing.
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